<?php

/**

 * [WeEngine System] Copyright (c) 2014 WE7.CC

 * WeEngine is NOT a free software, it under the license terms, visited http://www.qincewang.com/ for more details.

 */class Agent

{

		const DEVICE_MOBILE  = 1;

	const DEVICE_DESKTOP = 2;

	const DEVICE_UNKNOWN = -1;

	

		const BROWSER_TYPE_IPHONE  = 1;

	const BROWSER_TYPE_IPAD    = 2;

	const BROWSER_TYPE_IPOD	   = 3;

	const BROWSER_TYPE_ANDROID = 4;

	const BROWSER_TYPE_UNKNOWN = -1;

	

		const OS_TYPE_IOS	  = 1;

	const OS_TYPE_ANDROID = 2;

	const OS_TYPE_UNKNOWN = -1;

	

		const RETINA_TYPE_YES = 1;

	const RETINA_TYPE_NOT = 0;

	

		const IOS6_YES = 1;

	const IOS6_NOT = 0;

	

		const MICRO_MESSAGE_YES = 1;

	const MICRO_MESSAGE_NOT = 0;

	

		const APP_INSTALLED_YES = 1;

	const APP_INSTALLED_NOT = 0;

	

		public static function getDeviceInfo()

	{

		return array(

			'deviceType'  => self::deviceType(),

			'browserType' => self::browserType(),

			'isRetina' 	  => self::isRetina(),

			'osType' 	  => self::osType(),

			'isIos6' 	  => self::isIos6(),

		);

	}

	

		public static function browserType($agent = '')

	{

		$agent = self::getAgent($agent);

	

		if (stripos($agent, 'iphone') !== false) {

			return self::BROWSER_TYPE_IPHONE;

		}

		

		if (stripos($agent, 'ipad') !== false) {

			return self::BROWSER_TYPE_IPAD;

		}

		

		if (stripos($agent, 'ipod') !== false) {

			return self::BROWSER_TYPE_IPOD;

		}

		

		if (stripos($agent, 'android') !== false) {

			return self::BROWSER_TYPE_ANDROID;

		}



		return self::BROWSER_TYPE_UNKNOWN;

	}

	

		public static function osType($agent = '')

	{

		$agent = self::getAgent($agent);

		$browserType = self::browserType($agent);



		switch ($browserType) {

			case self::BROWSER_TYPE_IPHONE:

			case self::BROWSER_TYPE_IPAD:

			case self::BROWSER_TYPE_IPOD:

				 $osType = self::OS_TYPE_IOS;

				 break;

			case self::BROWSER_TYPE_ANDROID:

				 $osType = self::OS_TYPE_ANDROID;

				 break;

			default:

				 $osType = self::OS_TYPE_UNKNOWN;

		}

		

		return $osType;

	}

	

		public static function deviceType()

	{

		if (self::isMobile()) {

			return self::DEVICE_MOBILE;

		} else {

			return self::DEVICE_DESKTOP;

		}

	}

	

		public static function isRetina($agent = '')

	{

		$agent = self::getAgent($agent);

		$osType = self::osType($agent);

		

		if (($osType == self::OS_TYPE_IOS) && (self::isIos6($agent) != 1)) {

			return self::RETINA_TYPE_YES;

		} else {

			return self::RETINA_TYPE_NOT;

		}

	}

	

		public static function isIos6($agent = '')

	{

		$agent = self::getAgent($agent);

		

		if (stripos($agent, 'iPhone OS 6')) {

			return self::IOS6_YES;

		} else {

			return self::IOS6_NOT;

		}

	}

	

		public static function isMicroMessage($agent = '')

	{

		$agent = self::getAgent($agent);

		

		if (stripos($agent, 'MicroMessenger') !== false) {

			return self::MICRO_MESSAGE_YES;

		} else {

			return self::MICRO_MESSAGE_NOT;

		}

	}

	

		public static function isAppInstalled()

	{

		if (isset($_GET['isappinstalled']) && ($_GET['isappinstalled'] == 1)) {

			return self::APP_INSTALLED_YES;

		} else {

			return self::APP_INSTALLED_NOT;

		}

	}

	

		public static function isMobile()

	{

				if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {

			return true;

		}

				if (isset($_SERVER['HTTP_VIA'])) {

						return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;

		}

				if (isset ($_SERVER['HTTP_USER_AGENT'])) {

			$clientkeywords = array('nokia', 'sony', 'ericsson', 'mot', 'samsung', 'htc', 'sgh', 'lg', 'sharp',

				'sie-', 'philips', 'panasonic', 'alcatel', 'lenovo', 'iphone', 'ipod', 'blackberry', 'meizu', 

				'android', 'netfront', 'symbian', 'ucweb', 'windowsce', 'palm', 'operamini', 'operamobi', 'openwave', 

				'nexusone', 'cldc', 'midp', 'wap', 'mobile');

						if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {

				return true;

			}

		}

				if (isset($_SERVER['HTTP_ACCEPT'])) {

						if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {

				return true;

			}

		}

		return false;

	}

	

	public static function getAgent($agent = '')

	{

		$agent = empty($agent) ? $_SERVER['HTTP_USER_AGENT'] : $agent;

		return $agent;

	}

}